Baumer EXG Посібник користувача - Сторінка 29
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5.4 IP Configuration
5.4.1 Persistent IP
A persistent IP adress is assigned permanently. Its validity is unlimited.
Notice
Please ensure a valid combination of IP address and subnet mask.
IP range:
0.0.0.0 – 127.255.255.255
128.0.0.0 – 191.255.255.255
192.0.0.0 – 223.255.255.255
These combinations are not checked by Baumer GAPI, Baumer GAPI Viewer or camera
on the fly. This check is performed when restarting the camera, in case of an invalid IP
- subnet combination the camera will start in LLA mode�
* This feature is disabled by default�
5.4.2 DHCP (Dynamic Host Configuration Protocol)
The DHCP automates the assignment of network parameters such as IP addresses, sub-
net masks and gateways. This process takes up to 12 sec.
Once the device (client) is connected to a DHCP-enabled network, four steps are processed:
▪ DHCP Discovery
In order to find a DHCP server, the client sends a so called DHCPDISCOVER broad-
cast to the network.
▪ DHCP Offer
After reception of this broadcast, the DHCP server will answer the request by a
unicast, known as DHCPOFFER. This message contains several items of information,
such as:
Information for the client
Information on server
Subnet mask:
255�0�0�0
255�255�0�0
255�255�255�0
MAC address
offered IP address
IP adress
subnet mask
duration of the lease
Internet Protocol:
On Baumer cameras IP v4
is employed.
▲ Figure 38
Connection pathway for
Baumer Gigabit Ether-
net cameras:
The device connects
step by step via the
three described mecha-
nisms�
DHCP:
Please pay attention to the
DHCP Lease Time.
◄ Figure 39
DHCP Discovery
(broadcast)
◄ Figure 40
DHCP offer (unicast)
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